From 89a7cf0936e9350ef857902c63cd0f073bad9af6 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ciro=20Santilli=20=E5=85=AD=E5=9B=9B=E4=BA=8B=E4=BB=B6=20?=
 =?UTF-8?q?=E6=B3=95=E8=BD=AE=E5=8A=9F?= <ciro.santilli@gmail.com>
Date: Sat, 15 Jun 2019 00:00:01 +0000
Subject: [PATCH] x86 asm: improve jcc

---
 README.adoc                | 5 ++++-
 userland/arch/x86_64/jcc.S | 4 ++--
 2 files changed, 6 insertions(+), 3 deletions(-)

diff --git a/README.adoc b/README.adoc
index 00f9ba8..0da2614 100644
--- a/README.adoc
+++ b/README.adoc
@@ -11780,6 +11780,9 @@ The first examples you should look into are:
 ** <<x86-addressing-modes>>
 ** <<arm-addressing-modes>>
 * registers: <<assembly-registers>>
+* jumping:
+** <<x86-control-transfer-instructions>>
+** <<arm-branch-instructions>>
 * SIMD
 ** <<x86-simd>>
 ** <<arm-simd>>
@@ -12404,8 +12407,8 @@ Jcc includes the instructions:
 
 JG vs JA and JL vs JB:
 
+* https://stackoverflow.com/questions/9617877/assembly-jg-jnle-jl-jnge-after-cmp/56613928#56613928
 * https://stackoverflow.com/questions/20906639/difference-between-ja-and-jg-in-assembly
-* https://stackoverflow.com/questions/9617877/assembly-jg-jnle-jl-jnge-after-cmp
 
 === x86 SIMD
 
diff --git a/userland/arch/x86_64/jcc.S b/userland/arch/x86_64/jcc.S
index 3e645d4..706c71e 100644
--- a/userland/arch/x86_64/jcc.S
+++ b/userland/arch/x86_64/jcc.S
@@ -44,12 +44,12 @@ LKMC_PROLOGUE
         popf
         pushf
 
-        /* ! 0 > 255 */
+        /* !(0 > 255) */
         LKMC_ASSERT(jna)
         popf
         pushf
 
-        /* ! 0 < -1 */
+        /* !(0 < -1) */
         LKMC_ASSERT(jnl)
         popf
         pushf